Houston (IAH) to Louisville (SDF)
Flight time
≈ 2h 23m
Bearing
42° NE
Houston (IAH) to Louisville (SDF) is 788 miles (1,268 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAH–SDF
Filed traffic dataIn July 2026, Mesa Airlines was the only carrier flying nonstop IAH–SDF; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 83% full.
Departures
183
July 2026
Seats
13,242
both directions
Passengers
11,014
both directions
Load factor
83.2%
RPM ÷ ASM
Who flies IAH–SDF?
Mesa Airlines was the only carrier to fly nonstop IAH–SDF in July 2026 (183 departures).
- YV
183 departures · 13,242 seats
Share of departures100.0%83.2%
Load
What plane flies IAH–SDF?
In July 2026, the Embraer E175 flew 100% of IAH–SDF departures.
- Embraer E175
183 departures · 83.2% load
100.0%
How has IAH–SDF traffic changed?
Nonstop IAH–SDF departures rose from 180 in August 2025 to 183 in July 2026.
Monthly nonstop IAH–SDF traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
180 departures · 10,090 passengers
75.5%
Load
September 2025
179 departures · 10,754 passengers
81.2%
Load
October 2025
186 departures · 11,202 passengers
81.5%
Load
November 2025
173 departures · 8,808 passengers
69.0%
Load
December 2025
183 departures · 10,629 passengers
78.7%
Load
January 2026
164 departures · 9,088 passengers
74.7%
Load
February 2026
158 departures · 9,350 passengers
81.2%
Load
March 2026
164 departures · 9,181 passengers
76.5%
Load
April 2026
184 departures · 10,136 passengers
73.0%
Load
May 2026
191 departures · 10,166 passengers
70.8%
Load
June 2026
176 departures · 10,515 passengers
82.7%
Load
July 2026
183 departures · 11,014 passengers
83.2%
Load
By direction
Each direction is filed separately — they rarely match.
IAH → SDF
83.4% full
92 departures · 5,543 passengers
SDF → IAH
83.0% full
91 departures · 5,471 passengers
Nonstop IAH–SDF traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Louisville
US
Louisville Muhammad Ali International Airport
Coordinates
38.17°N, 85.74°W
Hemisphere
N · W
Frequently asked
How far is Houston (IAH) from Louisville (SDF)?
IAH to SDF is 788 miles (1,268 km / 685 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAH to SDF?
A nonstop covers the 788-mile great-circle distance in roughly 2h 23m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAH–SDF?
In July 2026, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying IAH–SDF?
Distance-based programs credit off the 788-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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